JP2018169498A - Optical unit with shake correction function and manufacturing method of optical unit with shake correction function - Google Patents

Abstract

An optical unit with a correction function that makes it easy to hold a camera module in a swingable camera module holder. An optical unit with a shake correction function includes a camera module having an optical element and an image pickup element, and a cylindrical holding portion that holds the camera module from the outside in the radial direction orthogonal to the optical axis. A movable body 3 having a camera module holder 102 and a holder body member 81 that supports the movable body 3 in a swingable manner. When the movable body 3 is in the reference posture and the movable body 3, the swing support mechanism and the holder 5 are viewed from the subject side, the holding unit 123 overlaps the camera module 101, the swing support mechanism 4 and the holder 5. The supporting convex part 125 (visible part) which can be visually observed is provided. If the supporting convex portion 125 is supported by the jig H, the camera module holder 102 cannot be swung. [Selection] Figure 14

Description

  The present invention relates to an optical unit with a shake correction function and a method for manufacturing an optical unit with a shake correction function that are mounted on a portable terminal or a moving body.

  An imaging device mounted on a mobile object such as a portable terminal, a vehicle, or an unmanned helicopter includes an optical unit on which an optical element for shooting is mounted. This type of optical unit is required to suppress disturbance of a captured image due to shake of the imaging device. Therefore, as an optical unit, an optical unit with a shake correction function is proposed in which a movable body including an optical element is swung in a pitching (pitch: tilting) direction and a yawing (rolling: panning) direction intersecting the optical axis. Has been.

  An optical unit with a shake correction function described in Patent Literature 1 includes a movable body including an optical element, a swing support mechanism that supports the movable body so as to swing, and a support that supports the camera module via the swing support mechanism. And a swinging magnetic drive mechanism for swinging the camera module. The movable body includes a camera module having an optical element and an imaging element positioned on the optical axis of the optical element, and a camera module holder that holds the camera module. The camera module holder includes a cylindrical holder that holds the camera module from the outside in the radial direction orthogonal to the optical axis. The swing support mechanism supports the camera module holder in a swingable manner.

Japanese Patent Laid-Open No. 2006-61956

  When assembling the optical unit with shake correction function described in Patent Document 1, in order to avoid dust and the like from adhering to the optical element, a process of completing the movable body by holding the camera module on the camera module holder It is desirable to carry out after the step of supporting the camera module holder on the support via the swing support mechanism. However, if the camera module holder is held by the camera module holder after the camera module holder is supported by the support via the swing support mechanism, the camera module holder is not fixed (the camera module holder is not attached to the support). Therefore, there is a problem that the workability of the mounting work for inserting and mounting the camera module into the holding part of the camera module holder is low.

  In view of the above problems, an object of the present invention is to provide an optical unit with a correction function that can easily hold a camera module in a swingable camera module holder.

In order to solve the above-described problems, an optical unit with a shake correction function according to the present invention includes a camera module having an optical element and an imaging element positioned on the optical axis of the optical element, and the camera module is orthogonal to the optical axis. A movable body including a camera module holder having a cylindrical holding portion that is held from the outside in the radial direction, a reference posture in which an axis set in advance for the movable body and an optical axis of the optical element, and the A swing support mechanism for swingably supporting between tilting postures in which the optical axis is tilted with respect to an axis, and a support for supporting the holding portion via the swing support mechanism, When the movable body, the swing support mechanism, and the support body are viewed from the subject side in the axial direction when the movable body is in the reference posture, the holding unit is configured to support the camera module, the swing support mechanism, and the swing support mechanism. Characterized in that it comprises a visible portion visible without overlapping with finely the support.

  The present invention also includes a camera module having an optical element and an imaging element positioned on the optical axis of the optical element, and a cylindrical holding portion that holds the camera module from the outside in the radial direction orthogonal to the optical axis. A movable body comprising a camera module holder, a reference posture in which an axis set in advance for the movable body and an optical axis of the optical element, and an inclined posture in which the optical axis is inclined with respect to the axis In the manufacturing method of the optical unit with a shake correction function having a swinging support mechanism that swingably supports between, and a support body that supports the holding unit via the swinging support mechanism, the holding unit includes: When the movable body, the swing support mechanism, and the support body are viewed from the subject side in the axial direction when the movable body is in the reference posture, the camera module, the swing support mechanism, and A visible portion that can be seen without overlapping the support is provided, the camera module holder is supported on the support via the swing support mechanism, and a jig is placed on the visible portion from the axial direction. The camera module holder is supported so as not to swing by abutting, and the camera module is inserted into the holding portion from the side opposite to the jig in the axial direction and held by the camera module holder. And

  According to the present invention, the camera module holder holding portion that holds the camera module from the outer peripheral side in the movable body can be viewed without overlapping the camera module, the swing support mechanism, and the support body when viewed from the subject side. With possible parts. Therefore, in order to avoid dust and the like from adhering to the optical element, the process of completing the movable body by holding the camera module on the camera module holder is supported on the support body via the swing support mechanism. When the process is performed after the step, the jig can be brought into contact with the visible portion from the subject side, and the camera module holder can be supported by the jig so as not to swing. Thereby, since it becomes easy to insert a camera module in a holding | maintenance part, the mounting | wearing operation | work which hold | maintains a camera module in a camera module holder becomes easy. Here, the side where the optical element is positioned in the axial direction is the subject side, and the side where the imaging element is positioned is the anti-subject side.

  In the present invention, the holding portion may include a convex portion protruding toward the subject, and the visible portion may be a tip portion of the convex portion. If the tip of the convex portion provided on the holding part is a visible part, the position in the axial direction of the visible part (the part supported from the subject side by the jig) can be easily set to a desired position.

  In the present invention, the swing support mechanism includes a leaf spring that is spanned between the holding portion and the support, and the holding portion includes a movable body side leaf spring fixing portion to which the leaf spring is fixed. Preferably, the movable body side leaf spring fixing portion is located on the outer peripheral side of the convex portion, and the movable body side leaf spring fixing portion and the convex portion are preferably separated in the radial direction. In this way, when the adhesive is applied to the movable body side leaf spring fixing portion in order to fix the leaf spring, the adhesive adheres to the visible portion (the portion supported from the subject side by the jig). Can be prevented. Further, if the movable body side leaf spring fixing portion and the convex portion are separated, contact and interference between the plate spring fixed to the movable body side leaf spring fixing portion and the jig can be avoided, so that the leaf spring can be deformed. Absent.

  In the present invention, it is desirable that the convex portion protrudes from an end portion on the inner peripheral side of the holding portion. If it does in this way, it will become easy to provide a movable body side leaf | plate spring fixing | fixed part in the outer peripheral side of the convex part in a holding | maintenance part.

In the present invention, it is desirable that a tip end portion of the convex portion is located closer to the subject side than the movable body side leaf spring fixing portion in the axial direction. In this way, when the adhesive is applied to the movable body side leaf spring fixing portion in order to fix the leaf spring, the adhesive adheres to the visible portion (the portion supported from the subject side by the jig). Can be prevented. Further, in this way, contact and interference between the plate spring fixed to the movable body side plate spring fixing portion and the jig can be avoided, so that the plate spring is not deformed.

  In the present invention, the holding portion includes a leaf spring bonding convex portion protruding on the subject side on the inner peripheral side of the movable body side leaf spring fixing portion, and a tip of the convex portion is the leaf spring bonding convex portion. The area when the tip of the visible portion is located in the axial direction from the tip of the leaf spring is larger than the area when the tip of the leaf spring bonding convex is seen from the axis. Larger is desirable. If it does in this way, it will become easy to make a jig contact a convex part from the direction of an axis. In this way, since the visible portion (the portion supported from the subject side by the jig) can be made relatively large, the camera module holder can be stably supported by the jig.

  In the present invention, the leaf spring includes a movable body side coupling portion fixed to the movable body side leaf spring fixing portion, a support body side coupling portion fixed to the support body on an outer peripheral side of the movable body side coupling portion, and the axis. A meandering portion that is positioned between the holding portion and the support body in a radial direction orthogonal to each other and that connects between the movable body side coupling portion and the support body side coupling portion is provided, and the meandering portion is provided in the movable body side coupling portion. A first extending portion that extends from the connecting portion located on the radially outer side of the convex portion for bonding the leaf spring to the outer peripheral side of the holding portion on one side in the circumferential direction, and an outer peripheral side from the tip of the first extending portion A first folded portion that is curved toward the other side in the circumferential direction toward the other side, and an outer peripheral side of the first extending portion extending from the tip of the first folded portion to the other side in the circumferential direction, and the convex portion for bonding the leaf spring A second extending portion that reaches the other side in the circumferential direction, and the second A second folded portion that curves toward one side in the circumferential direction from the distal end of the installation portion toward the outer peripheral side, and the convex portion is one of the circumferential directions around the axis, rather than the convex portion for bonding the leaf spring On the side, it is desirable that the leaf spring bonding convex portion is provided in an angular range closer to the leaf spring bonding convex portion than the center of the first folded portion and one end in the circumferential direction of the first folded portion. The first extending portion closest to the holding portion in the meandering portion may interfere with the convex portion provided in the holding portion when the movable body swings and the leaf spring is deformed. However, in the first extending portion, on the one side in the circumferential direction from the leaf spring bonding convex portion, the plate is more than the center between the leaf spring bonding convex portion and the one end in the circumferential direction in the first folded portion. In an angle range close to the spring bonding convex portion, the displacement toward the holding portion side (inner peripheral side) when the movable body swings is small compared to other portions. Therefore, if the convex portion is provided in such an angle range, even if the movable body swings and the leaf spring is bent, the leaf spring and the convex portion can be prevented from interfering with each other.

  In the present invention, the movable body side connecting portion is annular, and includes the plate spring bonding convex portions provided at equal angular intervals around the axis as the plate spring bonding convex portions, and the meandering portion. A plurality of meandering portions provided at equiangular intervals around the axis and positioned on the outer peripheral side of each leaf spring bonding convex portion, and the convex portions are provided at equiangular intervals around the axis. It is desirable to provide the said convex part. If it does in this way, when a jig | tool is made to contact | abut to a some convex part, the weight of a camera module holder can be received equally by each convex part. Therefore, the camera module holder can be stably supported by the jig.

  According to the optical unit with a shake correction function of the present invention, the camera module holder can be supported so as not to swing by bringing a jig into contact with the viewable portion provided on the swingable camera module holder from the axial direction. Therefore, the mounting operation for mounting the camera module on the holding portion of the camera module holder is facilitated.

It is the perspective view which looked at the optical unit to which this invention is applied from the to-be-photographed object side. It is sectional drawing of the optical unit in the AA of FIG. It is the disassembled perspective view which looked at the optical unit of FIG. 1 from the to-be-photographed object side. It is the disassembled perspective view which looked at the optical unit of FIG. 1 from the non-subject side. It is a disassembled perspective view of the non-subject side portion of the fixed body. It is the disassembled perspective view which looked at the movable body and the holder from the to-be-photographed object side. It is the disassembled perspective view which looked at the movable body and the holder from the non-subject side. It is the disassembled perspective view which looked at the movable body from the to-be-photographed object side. It is the disassembled perspective view which looked at the movable body from the non-subject side. It is sectional drawing which cut | disconnected the optical unit by the plane orthogonal to an axis line. It is explanatory drawing of a leaf | plate spring. It is sectional drawing which cut | disconnected the optical unit by the plane which passes along an axis line and a flexible printed circuit board. It is a flowchart of the manufacturing method of an optical unit. It is explanatory drawing of a camera module mounting process.

  Embodiments of an optical unit to which the present invention is applied will be described below with reference to the drawings. In this specification, the three axes of XYZ are directions orthogonal to each other, one side in the X-axis direction is indicated by + X, the other side is indicated by -X, one side in the Y-axis direction is indicated by + Y, and the other side is indicated by -Y. , One side in the Z-axis direction is indicated by + Z and the other side is indicated by -Z. The Z-axis direction coincides with the axial direction of the optical module. The + Z direction is the subject side in the axial direction of the optical module. The −Z direction is on the side opposite to the subject (image side) in the axial direction. The axis of the optical module coincides with the optical axis of the optical module.

(overall structure)
FIG. 1 is a perspective view of an optical unit to which the present invention is applied as viewed from the subject side. 2 is a cross-sectional view of the optical unit taken along line AA in FIG. FIG. 3 is an exploded perspective view of the optical unit of FIG. 1 viewed from the subject side. FIG. 4 is an exploded perspective view of the optical unit of FIG. 1 when viewed from the opposite object side. The optical unit 1 shown in FIG. 1 is used, for example, for optical devices such as mobile phones with cameras and drive recorders, and optical devices such as action cameras and wearable cameras mounted on moving bodies such as helmets, bicycles, and radio controlled helicopters. . In such an optical device, when the shake of the optical device occurs during shooting, the captured image is disturbed. The optical unit 1 is an optical unit with a shake correction function that corrects the tilt of the optical element 2 in order to avoid tilting the captured image.

  As shown in FIG. 2, the optical unit 1 includes a movable body 3 (optical module) including an optical element 2, a swing support mechanism 4 that swingably supports the movable body 3, and a swing support mechanism 4. And a holder 5 for supporting the movable body 3. The optical unit 1 supports the holder 5 via the first rotation support mechanism 6 and the second rotation support mechanism 7 that rotatably support the holder 5, and the first rotation support mechanism 6 and the second rotation support mechanism 7. A fixed body 8 is provided. Furthermore, the optical unit 1 includes a leaf spring 9 that is bridged between the movable body 3 and the holder 5.

  The swing support mechanism 4 can swing the movable body 3 between a reference posture in which the predetermined axis L and the optical axis of the optical element 2 coincide with each other, and a tilt posture in which the optical axis is inclined with respect to the axis L. To support. The swing support mechanism 4 is a gimbal mechanism. The first rotation support mechanism 6 and the second rotation support mechanism 7 support the holder 5 so as to be rotatable around the axis L. In other words, the first rotation support mechanism 6 and the second rotation support mechanism 7 rotate the second movable body 10 including the holder 5 and the movable body 3 supported by the holder 5 so as to be swingable about the axis L. Support as possible. The first rotation support mechanism 6 is configured between the fixed body 8 and the holder 5. The second rotation support mechanism 7 is positioned on the side in the −Z direction (on the opposite subject side) than the first rotation support mechanism 6. The leaf spring 9 is for defining the reference posture of the movable body 3.

  The optical unit 1 also includes a swinging magnetic drive mechanism 11 that swings the movable body 3 and a rolling magnetic drive mechanism 12 that rotates the holder 5 (second movable body 10). The swing magnetic drive mechanism 11 includes a swing drive coil 13 held by the movable body 3 and a swing drive magnet 14 held by the fixed body 8. The swing drive coil 13 and the swing drive magnet 14 oppose each other in the radial direction perpendicular to the axis L. The rolling magnetic drive mechanism 12 includes a rolling drive coil 15 held by the holder 5 and a rolling drive magnet 16 held by the fixed body 8. In this example, the rolling drive coil 15 and the rolling drive magnet 16 face each other in the Z-axis direction (axial direction).

  Furthermore, the optical unit 1 includes a first stopper mechanism 17 and a second stopper mechanism 18 that define the swing range of the movable body 3, and a third stopper mechanism 19 that defines the rotation range of the holder (second movable body) (FIG. 1). The optical unit 1 includes flexible printed boards 20a, 20b, and 21. The flexible printed circuit board 20a is electrically connected to the rolling drive coil 15. The flexible printed circuit board 20b is electrically connected to the swing drive coil 13. The flexible printed board 21 is electrically connected to the board 104 held by the movable body 3.

(Fixed body)
As shown in FIGS. 1, 3, and 4, the fixed body 8 includes a fixed body main body 24 configured by assembling three cases 28, 29, and 30, and a leaf spring 25 ( Spring member) and a movable holder 26 supported by the fixed body 24 via a leaf spring 25. The movable holder 26 is supported so as to be movable in the Z-axis direction. As shown in FIG. 1, the fixed body 24 includes a cylindrical case 28 having a substantially octagonal outer shape when viewed from the Z-axis direction (axial direction), and a + Z direction side with respect to the cylindrical case 28 ( A subject side case 29 assembled from the subject side) and an anti-subject side case 30 assembled from the −Z direction side (anti-subject side) with respect to the cylindrical case 28 are provided. The cylindrical case 28 is made of a magnetic material. The subject side case 29 and the non-subject side case 30 are made of a resin material.

  As shown in FIG. 3, the cylindrical case 28 includes a substantially octagonal cylindrical barrel portion 31 and a frame-shaped end plate portion 32 projecting inward from an end portion of the barrel portion 31 in the + Z direction. An approximately octagonal opening 33 is formed in the center of the end plate portion 32. The body portion 31 is provided at side plates 35 and 36 facing in the X-axis direction, side plates 37 and 38 facing in the Y-axis direction, and four corners inclined at 45 degrees with respect to the X-axis direction and the Y-axis direction. Side plate 39 is provided. As shown in FIGS. 3 and 4, the swing drive magnet 14 is fixed to the inner peripheral surfaces of the side plates 35 and 36 facing in the X-axis direction and the side plates 37 and 38 facing in the Y-axis direction, respectively. Yes. As shown in FIG. 4, rectangular cutouts 40 are formed in the two side plates 39 located on the + X direction side among the four side plates 39. The notch 40 has a shape in which the edge in the −Z direction of the side plate 39 is notched in the + Z direction.

  The subject-side case 29 includes a cylindrical trunk portion 43 that abuts on the end plate portion 32 of the cylindrical case 28 and an end plate portion 44 that protrudes inward from the + Z direction end portion of the trunk portion 43. A circular opening 45 is formed in the center of the end plate portion 44. As shown in FIG. 4, the inner peripheral surface of the body portion 43 is substantially circular, and the outer peripheral surface is substantially octagonal when viewed in the Z-axis direction. The outer peripheral surface of the body 43 has side surfaces 47 and 48 facing in the X-axis direction, side surfaces 49 and 50 facing in the Y-axis direction, and four corners inclined by 45 degrees with respect to the X-axis direction and the Y-axis direction. And a side surface 51 provided in the section. The subject side case 29 is fixed to the cylindrical case 28 by four headed screws 52 that pass through the end plate portion 32 of the cylindrical case 28 from the −Z direction and are screwed into the trunk portion 43. Here, the surface in the −Z direction of the end plate portion 44 is an annular surface coaxial with the axis L, and is a fixed body side facing portion 55 corresponding to the holder 5 in the Z axis direction. The fixed body side facing portion 55 is provided with a fixed body side annular groove 56. The fixed body side annular groove 56 is coaxial with the axis L, and the cross-sectional shape is an arc.

  As shown in FIG. 3, the non-subject side case 30 includes a substantially octagonal end plate portion 58 that is orthogonal to the axis L, and a wall portion that rises in the + Z direction from the end edge (side) in the −X direction of the end plate portion 58. 59, two wall portions 60 that rise in the + Z direction and face in the Y-axis direction from the −Y-direction end edge (side) of the end plate portion 58 and the + Y-direction end edge (side), and the wall portions 59 and 2 Two wall portions 61 are provided between each of the wall portions 60 and inclined by 45 degrees with respect to the X-axis direction and the Y-axis direction. Here, a wall portion is not provided on the edge (side) in the + X direction of the end plate portion 58, and the opening portion 62 and the end in the + X direction of the two wall portions 60 opposed in the Y-axis direction are provided. It has become. As shown in FIG. 1, the opening 62 is an outlet for the flexible printed boards 20 a, 20 b, and 21.

  Leaf spring fixing portions 65 for fixing both end portions of the leaf spring 25 in the Y direction are provided at the end portions in the + Z direction of the two wall portions 60 facing in the Y axis direction. The leaf spring fixing portion 65 has a rectangular shape formed on an end surface 65a that extends in the X-axis direction and the Y-axis direction at a position offset in the −Z direction from the tip of the wall portion 59, and an edge portion on the outer peripheral side of each end surface 65a. A protrusion 65b and a circular protrusion 65c protruding in the + Z direction from the center of the rectangular protrusion 65b are provided.

  FIG. 5 is an exploded perspective view of the non-subject side portion (second rotation support mechanism 7, movable holder 26, leaf spring 25, and anti-subject side case 30) of the fixed body 8. As shown in FIG. 5, the movable holder 26 includes an outer ring 68 a of a ball bearing 68 that constitutes the second rotation support mechanism 7, and a movable holder main body member 71 that holds the two rolling drive magnets 16. In addition, the movable holder 26 includes a yoke 72 that contacts the movable holder main body member 71 from the −Z direction. The movable holder main body member 71 includes a cylindrical portion 73 in which the outer ring 68a fits on the inner peripheral side, an annular portion 74 that protrudes inward from the end in the −Z direction of the cylindrical portion 73, and an end in the + Z direction of the cylindrical portion 73. A magnet holding part 75 extending from the part to the outer peripheral side is provided. The annular portion 74 includes an annular contact portion 74a that contacts the outer ring 68a from the −Z direction. The magnet holding part 75 includes a pair of rectangular recesses 75a that are recessed inward in the radial direction from both sides in the Y-axis direction. The two rolling drive magnets 16 are respectively fitted into the recesses 75 a from the outer peripheral side and held by the movable holder main body member 71.

  The yoke 72 is made of a magnetic material. The yoke 72 includes a rectangular wide portion 72a located at a central portion in the Y-axis direction, and a rectangular portion 72b extending from the wide portion 72a to both sides in the Y-axis direction. The width of the rectangular portion 72b in the X-axis direction is narrower than the width of the wide portion 72a. A circular hole 72c is provided in the center of the wide portion. In the yoke 72, the cylindrical portion 73 of the movable holder main body member 71 is inserted into the circular hole 72c from the + Z direction side, the wide portion 72a abuts on the movable holder main body member 71 from the -Z direction, and the rectangular portion 72b is in the -Z direction. To the rolling drive magnet 16. The contour shape of the yoke 72 matches the contour shape when the movable holder main body member 71 holding the rolling driving magnet 16 is viewed from the Z-axis direction. Here, an adhesive is applied to a portion of the yoke 72 where the rolling driving magnet 16 abuts, and the rolling driving magnet 16 is also fixed to the yoke 72.

  The leaf spring 25 has a substantially rectangular outline shape that is long in the Y-axis direction. The leaf spring 25 includes a through hole 25a into which the cylindrical portion 73 of the movable holder main body member 71 can be inserted at the center in the Y-axis direction. The plate spring 25 includes U-shaped slits 25b on both sides in the Y-axis direction with the through hole 25a interposed therebetween. The shape of the two slits 25b is to edge the end portion of the yoke 72 in the Y-axis direction when the yoke 72 and the leaf spring 25 are overlapped. The leaf spring 25 includes fixing holes 25c for fixing the leaf spring 25 to the leaf spring fixing portion 65 at both ends in the Y-axis direction (outside in the Y-axis direction from the two slits 25b).

The leaf spring 25 is supported by the leaf spring fixing portion 65 in a state where the protrusions 65c are inserted into the fixing holes 25c and the center portions of both end portions in the Y-axis direction are placed on the protruding portions 65b. As shown in FIG. 1, the leaf spring 25 is fixed by being sandwiched between the cylindrical case 28 and the anti-subject side case 30 by assembling the cylindrical case 28 and the anti-subject side case 30. Fixed to the body 8. Here, as shown in FIG. 2, the plate spring 25 exerts a biasing force F that biases the movable holder 26 in the + Z-axis direction (subject side) when the movable holder 26 is supported by the fixed body 8. It becomes a state. That is, the plate spring 25 is in a state where the inner peripheral side portion is bent in the −Z direction (on the opposite side of the subject) with respect to both ends in the Y-axis direction fixed to the plate spring fixing portion 65, and the elastic return force The movable holder 26 is urged in the + Z-axis direction.

(holder)
FIG. 6 is an exploded perspective view of the movable body 3 and the holder 5 (second movable body 10) as viewed from the + Z direction side. FIG. 7 is an exploded perspective view of the movable body 3 and the holder 5 (second movable body 10) as viewed from the −Z direction side. As shown in FIG. 6, the holder 5 is positioned on the outer peripheral side of the movable body 3 and is fixed to the holder main body member 81 from the −Z direction and is movable. A holder bottom plate member 82 facing the body 3 is provided. The holder main body member 81 and the holder bottom plate member 82 are made of resin.

  As shown in FIG. 6, the holder main body member 81 includes an annular holder-side facing portion 84 that faces the annular fixed-body-side facing portion 55 of the stationary body 8 (subject-side case 29) at the end in the + Z direction. A holder body 85 is provided on the −Z direction side of the facing portion 84. The holder body portion 85 includes four window portions 86 arranged in the circumferential direction and four vertical frame portions 87 that partition the window portions 86 adjacent in the circumferential direction. Of the four window portions 86, two window portions 86 open in the X-axis direction, and the other two open in the Y-axis direction. The four vertical frame portions 87 are arranged at angular positions between the X-axis direction and the Y-axis direction, respectively.

  The holder-side facing portion 84 is an annular surface whose end surface on the + Z direction side is orthogonal to the axis L, and a holder-side annular groove 90 is provided on the annular surface. The holder-side annular groove 90 faces the fixed body-side annular groove 56 provided in the holder-side facing portion 84 in the Z-axis direction. The holder-side annular groove 90 is coaxial with the axis L and has a circular cross section. The holder-side facing portion 84 includes an annular end surface 84a that is orthogonal to the axis L and faces the -Z direction.

  At the end portion in the −Z direction of the holder body 85, there are a protrusion 91 protruding in the intermediate direction between the + X direction and the + Y direction and a protrusion 91 protruding in the intermediate direction between the + X direction and the −Y direction. Is provided.

  The holder bottom plate member 82 includes a facing surface 82 a that is orthogonal to the axis L and faces the movable body 3 from the −Z direction side. A rectangular protruding portion 82b protruding in the + Z direction is provided at both ends of the facing surface 82a in the Y-axis direction. On the outer peripheral edge of the opposing surface 82a of the holder bottom plate member 82, there are provided step portions 93 that surround the bottom plate from both sides in the Y-axis direction and the + X direction. The stepped portion 93 includes an annular convex portion 94 that protrudes in the + Z direction on the inner peripheral side. When the holder bottom plate member 82 is fixed to the holder main body member 81, the annular convex portion 94 is fitted inside the opening 95 in the -Z direction of the holder main body member 81 (holder body 85).

  Further, as shown in FIG. 7, the holder bottom plate member 82 includes a shaft portion 96 protruding in the −Z direction. The shaft portion 96 is provided coaxially with the axis L. The shaft portion 96 holds the inner ring 68b of the ball bearing 68 on the outer peripheral side. An end surface in the + Z direction of the inner ring 68b contacts the holder bottom plate member 82. The holder bottom plate member 82 includes rolling drive coil holding portions 97 on both sides of the shaft portion 96 in the Y-axis direction. The rolling drive coil 15 is held by the rolling drive coil holding unit 97 from the −Z direction. Here, the flexible printed circuit board 20 a is electrically connected to the rolling drive coil 15 held by the holder bottom plate member 82.

(Movable body)
FIG. 8 is an exploded perspective view of the movable body 3, the swing support mechanism 4, and the leaf spring 9 as viewed from the + Z direction side (subject side). FIG. 9 is an exploded perspective view of the movable body 3, the swing support mechanism 4, and the leaf spring 9 as viewed from the −Z direction side (the non-subject side). As shown in FIGS. 8 and 9, the movable body 3 includes a camera module 101 and a camera module holder 102 that holds the camera module 101 from the outer peripheral side. As shown in FIG. 2, the camera module 101 includes an optical element 2 and an imaging element 103 located on the optical axis of the optical element 2. The image sensor 103 is mounted on a substrate 104 on which a gyroscope, a signal processing circuit, and the like are mounted. The camera module 101 includes a lens barrel member 106 that holds the optical element 2, and a frame 107 that holds the lens barrel member 106 and the substrate 104. As shown in FIG. 8, the frame 107 includes a cylindrical portion 108 that holds the end portion of the lens barrel member 106 in the −Z direction on the inner peripheral side, and a rectangular shape that extends from the −Z direction edge of the cylindrical portion 108 to the outer peripheral side. Plate portion 109 and a rectangular tube portion 110 extending from the outer peripheral edge of the plate portion 109 in the −Z direction. As shown in FIG. 9, the substrate 104 is held on the inner peripheral side of the rectangular tube portion 110.

  In the rectangular tube portion 110, a first convex portion 111 for stopper and a stopper portion projecting in the −Z direction on both sides of the optical axis (axis line L), the imaging element 103, and the substrate 104 in the Y-axis direction. A second convex portion 112 is provided.

  As shown in FIG. 9, the camera module holder 102 rises in the + Z direction and extends in the Y-axis direction at both ends of the substantially octagonal bottom plate portion 115 and the bottom plate portion 115 in the X-axis direction when viewed in the Z-axis direction. And a pair of wall portions 118 and 119 that rise in the + Z direction and extend in the X-axis direction at both ends in the Y-axis direction of the bottom plate portion 115. Two second stopper convex portions 120 projecting in the + Z direction are provided on the end surfaces in the + Z direction of the walls 116, 117, 118, and 119. The two second stopper convex portions 120 protrude from the circumferential end portions of the wall portions 116, 117, 118, and 119, respectively. A swing driving coil 13 is fixed to each of the walls 116, 117, 118, and 119.

  The camera module holder 102 includes a cylindrical holding portion 123 that rises in the + Z direction from the edge of a circular through hole formed in the center of the bottom plate portion 115. On the annular end surface 123a in the + Z direction of the holding portion 123, leaf spring bonding convex portions 124 for fixing the leaf spring 9 are provided at four positions at equal angular intervals. As shown in FIG. 6, on the annular end surface 123 a, the outer peripheral side of the leaf spring bonding convex portion 124 is a movable body side leaf spring fixing portion 123 b that fixes the leaf spring 9. The leaf spring 9 is fixed to the movable body side leaf spring fixing portion 123b via an adhesive layer.

  As shown in FIG. 8, the holding portion 123 is further provided with a supporting convex portion 125 (visible portion / convex portion). The supporting convex portion 125 is a convex portion for supporting the camera module holder 102 from the + Z-axis direction side with a jig when the second movable body 10 (the movable body 3 and the holder 5) is assembled. The supporting convex portions 125 are provided at four locations at equal angular intervals around the axis L. The angular position where each leaf spring bonding convex portion 124 is formed is different from the angular position where each supporting convex portion 125 is formed. Further, each supporting convex portion 125 is provided on the inner peripheral side of the movable body side leaf spring fixing portion 123b on the annular end surface 123a in the + Z direction of the holding portion 123. Each supporting convex portion 125 projects in the + Z direction from the end portion on the inner peripheral side of the annular end surface 123a. Here, the tip surfaces 125a (tip portions) of the four support convex portions 125 can be seen without overlapping with the camera module 101, the swing support mechanism 4, and the holder 5 when viewed from the + Z direction side. It has become a part.

Here, although not shown in FIG. 8, the flexible printed circuit board 20 b is fixed to the camera module 101 and is oscillated and fixed to the walls 116, 117, 118, and 119 of the camera module holder 102. The coil 13 is electrically connected. The flexible printed circuit board 21 is fixed to the camera module 101 and is electrically connected to the circuit board 104 held by the rectangular tube portion 110 of the camera module 101. The flexible printed boards 20b and 21 are routed between the first convex portion 111 for stopper and the second convex portion 112 for stopper.

(Swing support mechanism)
FIG. 10 is a cross-sectional view of the optical unit 1 cut along a plane perpendicular to the axis L and passing through the swing support mechanism 4. The swing support mechanism 4 is configured between the camera module holder 102 and the holder main body member 81. As shown in FIGS. 6 and 7, the swing support mechanism 4 includes two first swing support portions 131 provided at diagonal positions on the first axis R1 of the camera module holder 102, and a holder body member. 81, two second swing support portions 132 provided at diagonal positions on the second axis R2, and a movable frame 135 supported by the first swing support portion 131 and the second swing support portion 132. Prepare. Here, the first axis R1 and the second axis R2 are orthogonal to the Z-axis direction and inclined by 45 degrees with respect to the X-axis direction and the Y-axis direction. Accordingly, the first swing support part 131 and the second swing support part 132 are arranged at an angular position between the X-axis direction and the Y-axis direction. As shown in FIGS. 6 and 7, the second swing support portion 132 is a recess 81 a formed on the inner surface of the holder main body member 81.

  As shown in FIG. 10, the movable frame 135 is a plate spring having a substantially octagonal planar shape as viewed from the Z-axis direction. On the outer surface of the movable frame 135, metal spheres 137 are fixed at four locations around the axis L by welding or the like. The spherical body 137 makes point contact with the contact spring 138 held by the first swing support portion 131 provided on the camera module holder 102 and the second swing support portion 132 provided on the holder main body member 81. The contact spring 138 is a plate spring, and the contact spring 138 held by the first swing support portion 131 can be elastically deformed in the first axis R1 direction and is held by the second swing support portion 132. 138 is elastically deformable in the direction of the second axis R2. Therefore, the movable frame 135 is supported in a state of being rotatable around each direction in two directions (first axis R1 direction and second axis R2 direction) orthogonal to the Z-axis direction.

(Leaf spring)
FIG. 11A is a plan view of the plate spring 9 when viewed from the Z-axis direction, and FIG. 11B shows the movable body 3 and the holder 5 in a state where the plate spring 9 is bridged on the + Z direction side. It is a top view at the time of seeing from. As shown in FIG. 2, the leaf spring 9 has an annular end surface facing the −Z direction at the annular end surface 123 a (the end surface in the + Z direction) of the holding portion 123 of the camera module holder 102 and the holder side facing portion 84 of the holder main body member 81. 84a. The leaf spring 9 defines the reference posture of the movable body 3. That is, the posture (reference posture) of the movable body 3 (camera module 101) when the oscillating magnetic drive mechanism 11 is not driven is determined by the leaf spring 9. As shown in FIGS. 6, 7 and 11A, the leaf spring 9 is a rectangular frame-like leaf spring obtained by processing a metal plate.

  As shown in FIG. 11A, the leaf spring 9 is fixed to the annular movable body side connecting portion 141 fixed to the movable body side leaf spring fixing portion 123 b of the holding portion 123 and the end face of the holder main body member 4. One holder-side connecting portion 142 (supporting body-side connecting portion) and a meandering portion 143 positioned between the movable body-side connecting portion 141 and each holder-side connecting portion 142 in the radial direction. The holder side connecting portions 142 are disposed at two locations that sandwich the optical axis L on both sides in the X-axis direction and at two locations that sandwich the optical axis L on both sides in the Y-axis direction.

The movable body side connecting portion 141 is adjacent to the four connecting portions 141a having notches positioned on the outer peripheral side of the four leaf spring bonding convex portions 124 provided on the annular end surface 123a of the holding portion 123 in the circumferential direction. And an arcuate connection portion 141b for connecting the portion 141a. Here, the movable body side connecting portion 141 is fixed to the annular end surface 123a via an adhesive layer. Therefore,
In a state where the movable body side connecting portion 141 is fixed to the annular end surface 123a, the leaf spring 9 floats in the + Z direction from the annular end surface 123a. Further, the four connecting portions 141a are fixed to the leaf spring bonding convex portion 124 via an adhesive layer. Therefore, in a state where the connecting portion 141a is fixed to the leaf spring bonding convex portion 124, there is a radial gap between the connecting portion 141a and the leaf spring bonding convex portion 124.

  As shown in FIG. 11 (b), the meandering portion 143 has a holding portion from the connecting portion 141 a located on the outer peripheral side of the leaf spring bonding convex portion 124 in a state where the movable body side connecting portion 141 is fixed to the holding portion 123. A first extending part 143a extending from the outer peripheral side of 123 to one side (CW direction) in the circumferential direction, and a first folded part that curves from the tip of the first extending part 143a toward the outer peripheral side toward the other side in the circumferential direction 143b and the first folded portion 143b extending from the tip end of the first extending portion 143a to the other circumferential side (CCW direction) and reaching the other circumferential side than the leaf spring bonding convex portion 124. A second extending portion 143c, a second folded portion 143d that curves from the tip of the second extending portion 143c toward the outer circumferential side toward one side in the circumferential direction, and a second extending portion 143c from the tip of the second folded portion 143d. Outer circumference And a third extension part 143e that extends on one side of the circumferential direction (CW direction), the. The tip of the third extending portion 143 e is located on the other side of the leaf spring bonding convex portion 124 and is connected to the holder side connecting portion 142.

  Here, the four support convex portions 125 provided on the annular end surface 123a of the holding portion 123 are located on the inner peripheral side with respect to the movable body side leaf spring fixing portion 123b, and are radially with respect to the movable body side leaf spring fixing portion 123b. Separate with. Further, the movable body side coupling portion 141 of the leaf spring 9 fixed to the movable body side leaf spring fixing portion 123b is provided with a notch in a portion located on the outer peripheral side of each supporting convex portion 125, and the movable body side The connecting portion 141 and each supporting convex portion 125 are also spaced apart in the radial direction. Furthermore, the front end portion 125a of the support convex portion 125 is positioned on the + Z direction side with respect to the movable body side plate spring fixing portion 123b, and is positioned on the + Z direction side with respect to the front end portion of the plate spring bonding convex portion 124. . Further, the supporting convex portion 125 is on the one side in the circumferential direction (CW direction) around the axis L, and the circumferential direction of the leaf spring bonding convex portion 124 and the first folded portion 143b. Is provided in an angular range D that is closer to the leaf spring bonding convex portion 124 than the center C with respect to one end (angular position B).

(First stopper mechanism and second stopper mechanism)
Here, as shown in FIG. 2, when the movable body 3 is swingably held by the holder 5, the stopper first convex portion 111 protruding in the −Z direction from the movable body 3 (camera module 101) and The second convex portion 112 for stopper and the rectangular protruding portion 82b provided on the facing surface 82a of the holder bottom plate member 82 face each other in the Z-axis direction and define the swing range of the movable body 3. A mechanism 17 is configured. That is, when the movable body 3 is inclined to exceed the swing range, the first convex portion 111 for stopper or the second convex portion 112 for stopper comes into contact with the protruding portion 82b, and the movable body 3 is further inclined. To regulate. Further, when the movable body 3 moves in the −Z direction by an external force, the first stopper mechanism 17 causes the first convex portion 111 for stopper and the second convex portion 112 for stopper to abut on the protruding portion 82b, so that the movable body 3 3 restricts further movement in the −Z direction.

  Further, when the movable body 3 is swingably held by the holder 5, the second stopper convex portion 120 provided on the movable body 3 (camera module holder 102) and the −Z direction of the holder-side facing portion 84. And the second end stop mechanism 18 that defines the second swing range of the movable body 3 and is opposed to the annular end face 84a in the Z-axis direction. That is, when the movable body 3 has an inclined posture exceeding the second swing range, the second stopper convex portion 120 comes into contact with the annular end surface 84a, and the movable body 3 is restricted from further tilting. Further, when the movable body 3 moves in the + Z direction by an external force, the second stopper mechanism 18 makes the second stopper convex portion 120 abut on the annular end surface 84a, and the movable body 3 moves further in the + Z direction. To regulate.

  The second swing range defined by the second stopper mechanism 18 is narrower than the swing range defined by the first stopper mechanism 17 and is included in the swing range defined by the first stopper mechanism 17. Accordingly, the first convex portion 111 for stopper or the second convex portion 112 for stopper does not contact the protruding portion 82b while the movable body 3 swings within the second swing range.

(First rotation support mechanism and second rotation support mechanism)
Next, the 1st rotation support mechanism 6 and the 2nd rotation support mechanism 7 which support the holder 5 rotatably around the axis line L are demonstrated. As shown in FIGS. 2, 3, and 4, the first rotation support mechanism 6 includes a plurality of spheres 151 (rolling bodies) and a sphere 151 between a fixed body side facing portion 55 and a holder side facing portion 84. And a retainer 152 for holding. As shown in FIGS. 3 and 4, the retainer 152 includes a plurality of through holes 153 arranged at equal intervals in the circumferential direction. Each of the plurality of spheres 151 is inserted into the fixed body side annular groove 56 and the holder side annular groove 90 in a state of being arranged inside each of the plurality of through holes 153. Lubricating oil is applied to the inner peripheral surfaces of the fixed body side annular groove 56 and the holder side annular groove 90. In this example, the number of the spheres 151 and the through holes 153 is six. The spherical body 151 rolls on the fixed body side annular groove 56 and the holder side annular groove 90 in a state of being located inside the through hole 153.

  The retainer 152 includes a first protrusion 154 that protrudes toward the fixed body-side facing portion 55 between two through holes 153 that are adjacent in the circumferential direction, and a second protrusion that protrudes toward the holder-side facing portion 84. 155. As shown in FIG. 3, the first convex portion 154 includes a circular arc surface that extends in the radial direction and protrudes in the + Z direction from both ends in the circumferential direction toward the center. As shown in FIG. 4, the 2nd convex part 155 is extended in radial direction, and is provided with the circular arc surface which protrudes in the -Z direction toward the center from the both ends of the circumferential direction. A central portion in the circumferential direction of the first convex portion 154 can be slidably contacted with an inner peripheral side edge portion and an outer peripheral side edge portion of the fixed body side annular groove 56 in the fixed body side facing portion 55. The central portion in the circumferential direction of the second convex portion 155 can be slidably contacted with the inner peripheral side edge portion and the outer peripheral side edge portion of the holder side annular groove 90 in the holder side facing portion 84. Furthermore, the retainer 152 includes notches 152a at two locations on the outer peripheral edge that are spaced apart from each other. In this example, the notches 152a are provided at an angular interval of 180 °.

  Here, as shown in FIG. 2, an annular convex portion 157 protruding toward the −Z direction is provided at an end portion on the inner peripheral side of the stationary body side annular groove 56 in the stationary body side facing portion 55. On the other hand, an annular step portion 158 that is recessed in the −Z direction and receives the tip portion of the annular convex portion 157 is provided at the end portion on the inner peripheral side of the holder side facing portion 84 in the holder side facing portion 84. The annular step 158 includes an annular radial facing surface 158a that faces the distal end portion of the annular convex portion 157 at a narrow interval from the outer peripheral side, and an annular portion that faces the distal end portion of the annular convex portion 157 at a narrow interval from the Z-axis direction. The axial direction opposing surface 158b. The space between the annular convex portion 157 and the radial facing surface 158a and the space between the annular convex portion 157 and the axially facing surface 158b communicate with each other, and this space constitutes a labyrinth seal. The labyrinth seal prevents or suppresses dust from entering between the fixed body side facing portion 55 and the holder side facing portion 84 where the sphere 151 rolls.

  Next, as shown in FIG. 2, the ball bearing 68 of the second rotation support mechanism 7 includes an inner ring 68b held on the outer peripheral side of the shaft portion 96 of the holder 5 (holder bottom plate member 82), and an outer peripheral side of the inner ring 68b. And a plurality of spheres 68c that roll between the inner ring 68b and the outer ring 68a in the radial direction. The outer ring 68 a is held by the movable holder 26.

Here, the leaf spring 25 applies a pressure (biasing force F) in the + Z direction to the ball bearing 68. That is, the leaf spring 25 urges the movable holder 26 toward the holder bottom plate member 82 to urge the outer ring 68 a held by the holder 5 toward the holder bottom plate member 82. As a result, the inner ring 68b and the outer ring 68a are positioned relative to each other in the Z-axis direction with the holder bottom plate member 82 as a reference. Further, the state in which the outer ring 68a is in contact with the holder bottom plate member 82 is maintained by the pressurization (the urging force F of the leaf spring 25). Thereby, rotation of the holder 5 supported by the second rotation support mechanism 7 is stabilized.

  Further, the leaf spring 25 biases the holder 5 toward the fixed body side facing portion 55 of the fixed body 8 (subject side case 29) via the movable holder 26 and the outer ring 68a. Thereby, the leaf | plate spring 25 is giving the pressurization (biasing force F of FIG. 2) which goes to + Z direction to the 1st rotation support mechanism 6. FIG. That is, the leaf spring 25 urges the holder-side facing portion 84 toward the fixed body-side facing portion 55 in the Z-axis direction. Thus, the holder-side facing portion 84 and the fixed body-side facing portion 55 are not separated in the Z-axis direction, so that the sphere 151 held by the retainer 152 is fixed to the holder-side annular groove 90 of the holder-side facing portion 84. The holder 5 rotates smoothly with respect to the fixed body 8 without falling off between the body-side facing portion 55 and the fixed body-side annular groove 56.

(Third stopper mechanism)
Here, as shown in FIG. 1, when the holder 5 is rotatably supported by the fixed body 8, the notch 40 of the fixed body 8 (cylindrical case 28) has a holder 5 (holder body). The provided protrusion 91 is inserted from the inner peripheral side. Thereby, the notch 40 of the fixed body 8 and the protrusion 91 of the holder 5 constitute a third stopper mechanism 19 that regulates the rotation range around the axis L of the holder 5 (second movable body 10). That is, the holder 5 rotates about the axis L within a range in which the protrusion 91 can move in the circumferential direction in the notch 40.

(Swinging magnetic drive mechanism)
Next, the swinging magnetic drive mechanism 11 includes a first swinging magnetic drive mechanism 11A and a second swinging magnetic drive mechanism 11B provided between the movable body 3 and the fixed body 8, as shown in FIG. . The first swinging magnetic drive mechanism 11 </ b> A includes two sets of a swing drive magnet 14 and a swing drive coil 13 that face each other in the X-axis direction. The second oscillating magnetic drive mechanism 11B includes two sets of oscillating drive magnets 14 and oscillating drive coils 13 that face each other in the Y-axis direction. The swing driving coil 13 is held on the outer surfaces of the wall portions 116 and 117 on both sides in the X-axis direction and the wall portions 118 and 119 on both sides in the Y-axis direction of the camera module holder 102. The swing drive magnet 14 is held on the inner side surfaces of the side plates 35, 36, 37, 38 provided on the cylindrical case 28 of the fixed body 8. Each of the swing drive magnets 14 is divided into two in the Z-axis direction as shown in FIGS. 3 and 4, and the magnetic poles on the inner surface side are magnetized so as to be different from each other at the division position (magnetization polarization line). Yes. The swing driving coil 13 is an air-core coil, and the long side portions on the + Z direction side and the −Z direction side are used as effective sides. Here, since the cylindrical case 28 is made of a magnetic material, it functions as a yoke for the swing drive magnet 14.

  The two sets of second oscillating magnetic drive mechanisms 11B located on the + Y direction side and the −Y direction side of the movable body 3 generate a magnetic driving force in the same direction around the X axis when the oscillating drive coil 13 is energized. The wiring is connected so that In addition, the two sets of first swing magnetic drive mechanisms 11A located on the + X direction side and the −X direction side of the movable body 3 have the same magnetic drive force around the Y axis when the swing drive coil 13 is energized. Wiring is connected so that The oscillating magnetic drive mechanism 11 combines the rotation about the X axis by the second oscillating magnetic drive mechanism 11B and the rotation about the Y axis by the first oscillating magnetic drive mechanism 11A. Rotate around the axis R1 and around the second axis R2. When shake correction around the X axis and shake correction around the Y axis are performed, the rotation around the first axis R1 and the rotation around the second axis R2 are combined.

(Magnetic drive mechanism for rolling)
2 and 4, the rolling magnetic drive mechanism 12 is held by the rolling drive coil holding portions 97 provided on both sides of the holder bottom plate member 82 with the shaft portion 96 interposed therebetween in the Y-axis direction. The two rolling drive coils 15 and the two rolling drive magnets 16 held by the movable holder of the fixed body 8 and opposed to the respective rolling drive coils 15 in the Z-axis direction are provided. Each rolling drive magnet 16 is divided into two in the circumferential direction as shown in FIGS. 3 and 5 so that the magnetic poles on the surface facing the rolling drive coil 15 are different with respect to the dividing position (magnetization polarization line). Is magnetized. Each rolling drive coil 15 is an air-core coil, and a long side portion extending in the radial direction is used as an effective side.

(Optical unit shake correction)
As described above, the optical unit 1 includes the oscillating magnetic drive mechanism 11 that performs shake correction around the X axis and shake correction around the Y axis. Therefore, shake correction in the pitching (pitch) direction and yawing (rolling) direction can be performed. In addition, since the optical unit 1 includes the rolling magnetic drive mechanism 12, shake correction in the rolling direction can be performed. Here, since the optical unit 1 includes the gyroscope in the movable body 3, the swinging magnetic drive mechanism 11 and the rolling magnetism are detected so as to detect a swing around three axes orthogonal to each other by the gyroscope and to cancel the detected swing. The drive mechanism 12 is driven.

(Flexible printed circuit board routing)
FIG. 12 is a cross-sectional view of the optical unit 1 cut along a plane that passes through the axis L and the flexible printed boards 20a and 20b. As shown in FIG. 12, the flexible printed circuit board 20 a is electrically connected to the rolling driving coil 15 held by the holder bottom plate member 82. The flexible printed circuit board 20b is fixed to the camera module 101 and is electrically connected to the swing driving coil 13 fixed to the walls 116, 117, 118, and 119 of the camera module holder 102. The flexible printed circuit board 21 is fixed to the camera module 101 and is electrically connected to the circuit board 104 held by the rectangular tube portion 110 of the camera module 101.

  The flexible printed circuit board 20b and the flexible printed circuit board 21 are routed between the movable body 3 and the holder 5 (holder bottom plate member 82), and then the holder 5 (holder bottom plate member 82) and the fixed body (anti-subject side case). 30) and drawn out from the opening 62 of the non-subject side case 30 to the outside. Here, the flexible printed circuit board 20b and the flexible printed circuit board 21 are located between the movable body 3 and the holder 5 between the first convex portion 111 for stopper and the second convex portion 112 for stopper of the first stopper mechanism 17. It is routed in the X-axis direction.

(Optical unit manufacturing method)
FIG. 13 is a flowchart of the manufacturing method of the optical unit manufacturing method. FIG. 14 is an explanatory diagram of the camera module mounting process. As shown in FIG. 14, when assembling the optical unit 1, a movable body support step (step ST <b> 1) for swingably supporting the movable body 3 on the holder 5, and a holder 5 (second second) supporting the movable body 3. A holder supporting step (step ST2) for rotatably supporting the movable body 10) on the fixed body 8 is performed in this order.

  Here, in the movable body support step ST1, first, a camera module holder support step ST11 for supporting the camera module holder 102 on the support via the swing support mechanism 4 is performed, and then the camera module supported by the holder 5 is performed. A camera module mounting step ST12 for holding the camera module 101 in the holder 102 is performed.

  In the camera module holder support step ST11, contact springs are respectively applied to the first swing support portion 131 provided in the camera module holder 102 and the second swing support portion 132 provided in the holder main body member 81 (support). The four spheres 137 that hold 138 and are fixed to the movable frame 135 are supported by the contact springs 138, respectively. Thus, the camera module holder 102 is supported by the holder body member 81 via the swing support mechanism 4 so as to be swingable.

  In the camera module mounting step ST12, as shown in FIG. 14, the holder main body member 81 holding the camera module holder 102 is set in a posture in which the holder side facing portion 84 of the holder main body member 81 is positioned at the lower end in the vertical direction. Then, the jig H is brought into contact with the four support convex portions 125 provided on the holding portion 123 of the camera module holder 102 from below in the vertical direction, and the camera module holder 102 is supported from the bottom so as not to swing. Here, the jig H can be, for example, an annular jig having a flat annular surface capable of simultaneously contacting the four supporting convex portions 125. The outer diameter of the jig H is shorter than the inner diameter of the holder-side facing portion 84 of the holder main body member 81 and can be inserted into the inner peripheral side of the holder-side facing portion 84. The outer diameter of the jig H is substantially the same as the inner diameter of the holding portion 123 of the camera module holder 102.

  Thereafter, as shown in FIG. 13, the fixed camera module 101 with the flexible printed boards 20b and 21 attached thereto is inserted into the holding portion 123 of the camera module holder 102 from the upper side in the direction of the axis L (on the opposite subject side). Then, the plate portion 109 of the frame 107 of the camera module 101 is brought into contact with the bottom plate portion 115 of the holding portion 123. As a result, the camera module 101 is attached to the holding unit 123.

  Here, when the camera module 101 is inserted into the holding portion 123 of the camera module holder 102, the flexible printed circuit board 21 is electrically connected to the circuit board 104, but the flexible printed circuit board 20 b includes the swing drive coil 13. Is not electrically connected. Therefore, after the camera module 101 is mounted on the camera module holder 102, the flexible printed board 20b and the swing driving coil 13 held by the camera module holder 102 are electrically connected. As a result, the camera module 101 is mounted on the holding unit 123 to form the movable body 3. Thereafter, the holder bottom plate member 82 is fixed to the holder main body member 81 from above the movable body 3 (on the opposite subject side) to complete the holder 5. Thereby, a movable body support process (step ST1) is complete | finished.

  Thereafter, in the holder support step (step ST2), the holder 5 holding the movable body 3 is supported by the fixed body 8 via the first rotation support mechanism 6 and the second rotation support mechanism 7.

(Function and effect)
In this example, the step of holding the camera module 101 on the camera module holder 102 and completing the movable body 3 is the camera module holder support step of supporting the camera module holder 102 on the holder body member 81 via the swing support mechanism 4. Performed after ST11. Therefore, it is possible to prevent or suppress dust and the like from adhering to the optical element 2 in the camera module holder support step ST11. In the camera module holder support step ST11, since it is not necessary to handle the camera module 101 to which the flexible printed circuit board 21 is connected, it is possible to easily support the camera module holder 102 to the holder body member 81.

  Further, in the camera module mounting step ST12, the camera module holder 102 is supported by the jig H from the lower side (subject side) in the direction of the axis L so that the camera module 101 cannot be swung. Insert and hold. Thereby, since it becomes easy to insert the camera module 101 into the holding part 123, the mounting operation for holding the camera module 101 in the camera module holder 102 becomes easy.

  Here, the front end portions 125a of the four support convex portions 125 with which the jig H abuts can be visually observed without overlapping the camera module 101, the swing support mechanism 4 and the holder 5 when viewed from the subject side. It is a possible part. Therefore, it is easy to bring the jig H into contact with the front end portions 125a (viewable portions) of the four support convex portions 125 from the subject side.

  Further, since the portion with which the jig H abuts is the supporting convex portion 125 projecting from the holding portion 123 toward the subject, the position in the axis L direction of the front end surface 125a with which the jig H abuts can be set as a desired position. Easy.

  Further, the supporting convex portion 125 with which the jig H is brought into contact is separated from the movable body side leaf spring fixing portion 123b that fixes the leaf spring 9 in the radial direction. Therefore, it is possible to prevent the adhesive applied to the movable body side leaf spring fixing portion 123b to fix the leaf spring 9 from adhering to the supporting convex portion 125 supported by the jig H. Further, since the movable body side plate spring fixing portion 123b and the supporting convex portion 125 are separated in the radial direction, contact and interference between the plate spring 9 fixed to the movable body side plate spring fixing portion 123b and the jig H can be avoided. . Therefore, when the camera module holder 102 is supported by the jig H, the leaf spring 9 is not deformed.

  Further, in this example, the front end surface 125a of the supporting convex portion 125 with which the jig H is brought into contact is located on the subject side with respect to the movable body side leaf spring fixing portion 123b, and the leaf spring bonding convex portion 124 is provided. Located closer to the subject than the tip. Therefore, it is possible to prevent the adhesive applied to the movable body side leaf spring fixing portion 123b to fix the leaf spring 9 from adhering to the supporting convex portion 125 supported by the jig H. Further, since the movable body side leaf spring fixing portion 123b and the supporting convex portion 125 are separated in the Z-axis direction, contact and interference between the plate spring 9 fixed to the movable body side leaf spring fixing portion 123b and the jig H are avoided. it can. Therefore, when the camera module holder 102 is supported by the jig H, the leaf spring 9 is not deformed.

  Furthermore, the front end surface 125a of the support convex portion 125 with which the jig H is brought into contact is positioned on the subject side with respect to the movable body side leaf spring fixing portion 123b, and the front end surface 125a is viewed from the axis L direction. The area is larger than the area when the tip of the leaf spring bonding convex portion 124 is viewed from the direction of the axis L. Accordingly, the jig H can be easily brought into contact with the supporting convex portion 125 from the direction of the axis L.

  In this example, since the four support convex portions 125 are provided at equal angular intervals around the axis L, the weight of the camera module holder 102 is measured by the jig H brought into contact with the four support convex portions 125. Can be received evenly. Therefore, the camera module holder 102 can be stably supported by the jig H.

  Further, in this example, the supporting convex portion 125 is arranged around the axis L on the one side in the circumferential direction (CW direction) with respect to the flat spring bonding convex portion 124 and the first folded portion. It is provided in an angular range D closer to the leaf spring bonding convex portion 124 than the center C with respect to the angular position B of one end in the circumferential direction for 143b. Here, the first extending portion 143a closest to the holding portion 123 in the meandering portion 143 can interfere with the convex portion provided in the holding portion 123 when the movable body 3 swings and the leaf spring 9 is deformed. There is sex. However, in the CW direction in the circumferential direction from the leaf spring bonding convex portion 124, the leaf spring bonding convexity is more than the center between the leaf spring bonding convex portion 124 and the end in the circumferential direction CW in the first folded portion 143b. In the angle range D close to the portion 124, when the movable body 3 swings, the displacement toward the holding portion 123 (inner peripheral side) is small compared to the other portions. Therefore, if the supporting convex portion 125 is provided in such an angle range D, it is possible to prevent the leaf spring 9 and the convex portion from interfering even when the movable body 3 swings and the leaf spring 9 is deformed. .

(Modification)
In addition, without providing the supporting convex portion 125 on the holding portion 123 of the camera module holder 102, a convex portion is provided on the jig H that supports the camera module holder 102. In the camera module mounting step ST12, the jig H The camera module holder 102 may be supported by bringing the tip of the convex portion into contact with the annular portion on the inner peripheral side of the movable body side leaf spring fixing portion 123b in the annular end surface 123a of the holding portion 123. Even in this case, the annular portion of the annular end surface 123a of the holding portion 123 on the inner peripheral side with respect to the movable body side leaf spring fixing portion 123b is the same as the camera module 101, the swing support mechanism 4 and the holder 5 when viewed from the subject side. It is a visible portion that can be seen without overlapping. Therefore, it is possible to bring the convex portion provided on the jig H into contact with the annular portion on the inner peripheral side of the movable body side leaf spring fixing portion 123b on the annular end surface 123a.

DESCRIPTION OF SYMBOLS 1 ... Optical unit, 2 ... Optical element, 3 ... Movable body, 4 ... Swing support mechanism, 5 ... Holder, 6 ... 1st rotation support mechanism, 7 ... 2nd rotation support mechanism, 8 ... Fixed body, 9 ... Plate Spring 10, second movable body (holder and movable body) 11, 11 A, 11 B oscillating magnetic drive mechanism 12 rolling magnetic drive mechanism 13 oscillating drive coil 14 oscillating drive magnet 15 ... Rolling drive coil, 16 ... Rolling drive magnet, 17 ... First stopper mechanism, 18 ... Second stopper mechanism, 19 ... Third stopper mechanism, 20a, 20b, 21 ... Flexible printed circuit board, 24 ... Fixed body Main body, 25 ... leaf spring, 25a ... through hole, 25b ... slit, 25c ... fixed hole, 26 ... movable holder, 28 ... cylindrical case, 29 ... subject side case, 30 ... anti-subject side case, 31 ... cylindrical case Torso 32 ... End plate part of cylindrical case, 33 ... Opening part, 35-39 ... Side plate, 40 ... Notch part, 43 ... Body part of subject side case, 44 ... End plate part of cylindrical case, 45 ... Circular opening part , 47 to 51 ... side face, 52 ... screw, 55 ... fixed body side facing part, 56 ... fixed body side annular groove, 58 ... end plate part of the anti-subject side case, 59 to 61 ... wall part, 62 ... opening, 65 ... Leaf spring fixing part, 65a ... end face, 65c ... projection, 65b ... projecting part, 68 ... ball bearing, 68a ... outer ring, 68b ... inner ring, 68c ... spherical body, 71 ... movable holder body member, 72 ... yoke, 72a ... wide part , 72b ... rectangular portion, 72c ... circular hole, 73 ... cylindrical portion, 74 ... annular portion, 74a ... annular contact portion, 75 ... magnet holding portion, 75a ... concave portion, 81 ... holder body member (support), 81a ... recess, 82 ... holder bottom plate member, 82a ... opposite , 82b ... projecting part, 84 ... holder side facing part, 84a ... annular end face, 85 ... holder body part, 86 ... window part, 87 ... vertical frame part, 90 ... holder side annular groove, 91 ... projection, 93 ... step part , 94 ... Annular convex part, 95 ... Opening part, 96 ... Shaft part, 97 ... Rolling drive coil holding part, 101 ... Camera module, 102 ... Camera module holder, 103 ... Imaging element, 104 ... Substrate, 106 ... Lens barrel 107, frame, 108, cylindrical portion, 109, plate portion, 110, rectangular tube portion, 111, first convex portion for stopper, 112, second convex portion for stopper, 115, bottom plate portion, 116-119, wall , 120 ... second stopper convex part, 123 ... holding part of the camera module holder, 123a ... annular end surface of the holding part, 123b ... movable body side leaf spring fixing part, 124 ... leaf spring bonding convex part, 125 ... for support Convex (Convex portion), 131 · 132: swing support portion, 135: movable frame, 137: spherical body, 141: movable body side connection portion, 141a ... connection portion, 141b ... connection portion, 142 ... holder side connection portion (support side connection) Part), 143 ... meandering part, 143a ... first extension part, 143b ... first bending part, 143c ... second extension part, 143d ... second bending part, 143e ... third extension part, 151 ... sphere , 152 ... Retainer, 153 ... Through hole, 154 ... First convex part of retainer, 155 ... Second convex part of retainer, 157 ... Circular convex part, 158 ... Circular step part, 158a ... Radially opposed surface, 158b ... Axis line Direction facing surface, D ... Angular range, H ... Jig, L ... Axis, R1 ... First axis, R2 ... Second axis

Claims (9)

A camera module having an optical element and an image pickup element located on the optical axis of the optical element, and a camera module holder having a cylindrical holding part that holds the camera module from the outside in the radial direction orthogonal to the optical axis; A movable body comprising:
A swing support mechanism that supports the movable body so as to be swingable between a reference posture in which a preset axis and the optical axis of the optical element coincide with each other, and a tilt posture in which the optical axis is inclined with respect to the axis. When,
A support that supports the holding portion via the swing support mechanism,
When the movable body, the swing support mechanism, and the support body are viewed from the subject side in the axial direction when the movable body is in the reference posture, the holding portion is the camera module, the swing support mechanism. And an optical unit with a shake correction function, comprising a visible portion that can be seen without overlapping the support. The holding portion includes a convex portion protruding toward the subject,
The optical unit with a shake correction function according to claim 1, wherein the visible portion is a tip portion of the convex portion. The swing support mechanism includes a leaf spring that is spanned between the holding portion and the support.
The holding portion includes a movable body side leaf spring fixing portion to which the leaf spring is fixed,
The movable body side leaf spring fixing portion is located on the outer peripheral side of the convex portion,
The optical unit with a shake correction function according to claim 2, wherein the movable body side leaf spring fixing portion and the convex portion are separated from each other in the radial direction.   The optical unit with a shake correction function according to claim 3, wherein the convex portion protrudes from an end portion on an inner peripheral side of the holding portion.   5. The optical unit with a shake correction function according to claim 3, wherein a distal end portion of the convex portion is located closer to the subject side than the movable body side leaf spring fixing portion in the axial direction. The holding portion includes a leaf spring bonding convex portion protruding toward the subject side on the inner peripheral side of the movable body side leaf spring fixing portion,
The tip of the convex portion is located closer to the subject than the tip of the convex portion for bonding the leaf spring,
The area when the tip of the visible portion is viewed from the axial direction is larger than the area when the tip of the leaf spring bonding convex is viewed from the axial direction. Optical unit with shake correction function. The leaf spring includes a movable body side coupling portion fixed to the movable body side leaf spring fixing portion, a radial direction perpendicular to the axis and the support body side coupling portion fixed to the support body on the outer peripheral side of the movable body side coupling portion. A meandering portion that is located between the holding portion and the support body and connects between the movable body side coupling portion and the support body side coupling portion,
The meandering portion includes a first extending portion extending from the connecting portion located on the outer side in the radial direction of the leaf spring bonding convex portion in the movable body side connecting portion to the outer peripheral side of the holding portion on one side in the circumferential direction; A first folded portion that curves from the tip of the first extending portion toward the outer circumferential side toward the other side in the circumferential direction; and an outer peripheral side of the first extending portion from the tip of the first folded portion to the other side in the circumferential direction A second extending portion that extends to the other side in the circumferential direction with respect to the leaf spring bonding convex portion, and a second curve that curves from the tip of the second extending portion toward the outer peripheral side toward one side in the circumferential direction. A folded portion, and
The convex portion is on the one side in the circumferential direction with respect to the axis, and on the one side in the circumferential direction with respect to the convex portion for bonding the leaf spring, and the one end in the circumferential direction in the first folded portion. 7. An angle range closer to the leaf spring bonding convex portion than the center is provided.
An optical unit with a shake correction function described in 1. The movable body side connecting portion is annular,
As the leaf spring bonding convex portions, comprising a plurality of leaf spring bonding convex portions provided at equal angular intervals around the axis,
As the meandering portion, provided with a plurality of meandering portions that are provided at equiangular intervals around the axis and located on the outer peripheral side of each leaf spring bonding convex portion,
The optical unit with a shake correction function according to claim 7, comprising a plurality of the convex portions provided at equiangular intervals around the axis as the convex portions. A camera module having an optical element and an image pickup element located on the optical axis of the optical element, and a camera module holder having a cylindrical holding part that holds the camera module from the outside in the radial direction orthogonal to the optical axis; A movable body comprising: a movable body, a reference posture in which an axis set in advance for the movable body and an optical axis of the optical element coincide with each other, and an inclined posture in which the optical axis is inclined with respect to the axis. In a manufacturing method of an optical unit with a shake correction function, comprising: a swing support mechanism for supporting; and a support body that supports the holding unit via the swing support mechanism.
When the movable body, the swing support mechanism, and the support body are viewed from the subject side in the axial direction when the movable body is in the reference posture, the camera module, the swing support mechanism And a visible portion that can be seen without overlapping the support,
The camera module holder is supported on the support via the swing support mechanism,
A jig is brought into contact with the visible portion from the axial direction to support the camera module holder so as not to swing,
A method of manufacturing an optical unit with a shake correction function, wherein the camera module is inserted into the holding portion from the side opposite to the jig in the axial direction and held by the camera module holder.

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